The Cumbernauld company was successful in its tender bid for Fife Council's Scottish Housing Quality Standard investment programme.

During the three-year project, CMS will also handle recycling and emergency response plus use web-based tracking technology and an asset management system to give regular updates on progress.

The local authority intends to replace thousands of 'C'-rated windows with 'A'-rated, eco-friendly, lead-free equivalents.

John Rodigan, Fife Council building services manager, said: "Our housing and neighbourhood service are now providing the tenants of Fife with the best possible window for them and the environment.

"Our specification was demanding but not unachievable, as CMS have demonstrated. As well as exceeding our rigorous technical expectations, they are extremely customer focused and offer a number of added value and corporate social responsibility benefits.

"The new contract has given us a five per cent saving on the traditional window supply arrangements so we have effectively moved to a far superior window and reduced costs in doing so."

Andrew Kerr, managing director of CMS Enviro Systems, said: "It's an exciting time for CMS and being appointed to this three-year contract with Fife Council is the result of all the hard work of our staff.

"We are a professional company totally committed to supplying our clients with a top-quality, eco-friendly product.

"Our success is evidence of an intelligent client base, who are well aware of our environmental credentials and the life cycle savings our windows offer."

Cms had a turnover of £9.8m in 2008/09 and employs more than 90 staff between its manufacturing and recycling plants in Cumbernauld and Fife.

It has recently taken on a further three people as a result of the contract win.